> ...and I do remember one LTS → LTS upgrade of Ubuntu...
That's different. Supported features do change between distribution releases. But you don't ever need to do an emergency security update between releases. You have years to plan for a release upgrade. The grandparent was referring to unexpected emeregency breakages during updates within a release, which is an entirely separate thing.
That's different. Supported features do change between distribution releases. But you don't ever need to do an emergency security update between releases. You have years to plan for a release upgrade. The grandparent was referring to unexpected emeregency breakages during updates within a release, which is an entirely separate thing.